One reason why they became popular in the western part of the United States was that some of the states in that area had what was called a "bridge law". This allowed an axle to hold more weight if it was spaced out from the next closest axle. Basically the longer the truck, the more weight you were allowed to carry in certain areas. This was to help distribute the weight over a greater length of a bridge. These laws have mostly gone away now, but people liked the look, and most roads are open and straight in the western US, so some people still like to have long trucks. It is pretty rare to see them in the eastern US, as most of the roads are tighter.
KJ790Member Since 18 May 2010
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